Core Technology


Food waste is completely decomposed by Bio Star™, an agent developed by ExBio, as well as microorganisms that turn food waste into water and carbon dioxide, both of which go down the drain and into the sewers.

Microscopic analysis of the surface reveals numerous pores that provide a favorable environment for microorganisms.


It has a specific surface area of 1800㎛, which is larger than briquettes that can be measured at 500㎛. This means that Bio Star has a structure that can facilitate large quantities of microorganisms.

Each pore is distributed evenly across the surface and the size fits well with the microorganisms. This structure prevents microorganisms from getting easily washed away when water is supplied from the outside.


Experiments to observe the growth of cells using microorganisms and Bio Star™


Enzyme 159 microbial sample was diluted in distilled water, applied on an LB plate culture medium, and cultured for 18 hours in a shaking incubator. The number of microbial cells decreased after washing and increased after 2 hours of incubation. The number of cells decreased after being washed again and then increased by more than when cultured for 18 hours.


Shape of the colony isolated from Enzyme 159:

#1: Colony appears large and white
#2: Colony appears small and transparent


The two types of cells isolated from the Enzyme 159 sample were cultured alone or mixed on an LB culture medium supplemented with Bio-Star. Results show that even after washing for 5 minutes at intervals of 2 hours, the original volume is restored after 18 hours.

The raw material is an olefin-based resin approved by the US FDA. No soot is produced when burnt and resembles an innocuous candle burning.


Microorganism Enzyme 159

developed and produced by ExBio, is a medium-temperature microorganism, and it has optimal features for decomposing food.
  • Bacillus: microbe that decomposes carbohydrates and protein in food waste
  • Alkaline Genes: microbe that decomposes fat in food waste
  • Cellulomonas: microbe that decomposes dietary fiber in food waste
  • Nitrobacter: microbe that eliminates the odor from food waste

Principles of Food Decomposition

Step 1

Disperse fat and grease

Step 2

Each dispersed molecule gets divided and forms fatty acids and triglycerides

Step 3

Dispersed into fatty acids and triglycerides

Step 4

Bond between hydrogen and carbon molecules within the separated fatty acids and triglycerides is severed

Step 5

Transformed into carbon dioxide and water through a TCA metabolism process